Machine for operating upon soles



` July 29, 1947. c. E. HOOD MACHINE FOR OPERATING uPoN soLEs FiledAprill 21. 1944 4 Sheets-Sheet' 1 [111/ enor Charles E'Hooa' fJu1yz9,1947. gwoon 2,424,616

MACHINE FOR OPERATIG UPON SOLES FiledApi-il 21. 15944 4 sheets-sheet 2Inventor 'Char/es E.' Hood July 29, -1947. 3.` E. HOOD 2,424,616

MACHINE FOR OERHINGH UPON SOLES Filed April 21, 1944 4 sheets-sheet :s

Inventor Char/es E.' Hood B l' Azzo/"neg July 29, 1947. c. E. Hoon vMACHINE FOR OPERATING UPON SOLES Fiied April 21,/ 1944 4 sheets-sheet@ vnvenfor Char-les E Hood Patented July 29, 1947 MACHINE FOR OPERATINGUPON SOLES Charles E. Hood, Lynn, Mass., assigner to United ShoeMachinery Corporation, Flemington, N. J., a corporation of New JerseyApplication April 21, 1944, Serial No. 532,055

3 Claims.

This invention relates to machines for operating upon soles and isherein illustrated as embodied in a machine capable of applying an inkmark to a sole.

The machine disclosed herein is of the same general type as the machinedisclosed in United States Letters Patent No, 1,113,544, granted Ouctober 13, 1914, in the name of Miller Cook, Jr., and, like that machine,comprises a pair of knives for making incisions in an insole atapproximately the heel-breast line to terminate denitely the channelswhich have been formed in the insole, and it comprises also a device forapplying a mark t the insole to indicate the locality at whichsubsequent operations are t0 be started or ended. In the machinedisclosed in the patent to Cook the head which carries the various toolsis trunnioned about an axis parallel to a shaft which, through suitableconnections, lowers and raises the head to bring the tools into and outofV operative engagement with a sole on a work table. The marking deviceof that machine consists of a tool constructed and arranged to impressa, line of indentations upon the surface of the insole. In themanufacture of certain kinds of shoes, however, a more conspicuous mark,such as an ink mark, is considered desirable; but the diiculty ofarranging the mechanism necessary for ink marking in a machine of thistype, resulting from the presence of other tools and the generalorganization of the machine itself, has hitherto prevented the inclusionof such mechanism.

It is an object of the present invention to-provide a device forapplying an ink mark to a sole, which device is adapted to beincorporated in a machine lof the type under consideration.

As shown herein, the illustrative machine is provided with an ink markerfor engaging a work piece and an ink pad for applying ink tothe marker.The ink pad of the illustrative machine is operated through mechanismwhich derives its movement from a cam, on the shaft which operates thehead, said mechanism being arranged to bring the ink pad into engagementwith the marker and then to get the pad out of the way of the marker toleave the marker free to approach the work support. The ink pad is on acarrier which is movable heightwise to bring the pad against the lowersurface of the marker, and means are provided for moving the carrierlater-- ally out of the path of movement of the marker to get the padout of the way of the marker, the means for causing such lateralmovement being also constructed and arranged to move the pad downwardlyaway from the lower face of the 2 marker. The various members of the inkmarking device are so arranged that the lateral movement of the carriertakes place in a, direction parallel to the operating shaft, and alsoparallel to the axis of the trunnions upon which the head is mounted.This arrangement enablesthe device to be incorporated in a machine ofthe type under consideration with a, minimum 0f alteration.

In the accompanying drawings,

Fig. 1 is an angular view as seen from the left of a machine embodyingthe invention;

Fig. 2 is an angular View as seen from the right of the machine;

Fig. 3 is a plan view of the machine;

Fig. 4 is a front elevation of the machine; and

5 is an angular View of an insole illustrating the operation performedby the machine.

The supporting structure of the machine consists of a hollow frame orhousing Ill adapted to rest upon a work bench and having a flat worktable I2. Engageable with the upper surface of a sole on the work tableI2 is a marking tool I4, A head I5, which carries the tool I4, isfulcrumed upon a pair of trunnion pins I8 and 20 secured in bossesformed on the side Walls of the housing I0. The common axis of thetrunnion pins I8 and 2G is horizontal and transverse with respect to themachine, The head I6 is rocked about the axis of the trunnion pins I8and 20 to raise and lower the marking tool I4 by mechanism comprising ashaft 22 (Figs. 1 and 3), an eccentric 24 having a hub 25 on the shaft22, and a connecting rod 26 driven by the eccentric 24 and communicatingits movement to the head I6 through a swivel block 28 trunnioned in thehead. The shaft 22, which extends horizontally and transversely of themachine, is journaled in suitable bearings carried by the housing I0(and is driven from a pulley 30 through a one-revolution pin clutch 32.The machine is started for each operation by depressing a treadle (notshown) which causes a link 34 to swing downwardly a clutch arm 36 andthereby trip the clutch.

In addition to the marking tool I4, the head I6 carries a pair ofincising knives 38 and 46 having horizontal cutting edges which are incollinear relation. These knives are mounted for heightwise adjustmentin blocks 42 which are secured by setscrews 43 on the head I6. Theblocks 42 have dovetail portions which slide in guideways in the head ISto enable the blocks to be adjusted forwardly and rearwardly. Alsocarried by the head I6 is a presser 44 which operates when the head islowered to force the under surface of the sole against dies (not shown)which indent a size mark and also the manufacturers identifying markupon the sole. Another presser 45, mounted on the head I6, forces theunder surface of the sole upon a die (not shown) which indents a markindicating the width of the sole. A slot 4`| is provided in the worktable I2 for receiving the width mark die.

The sole is gaged lengthwise of the work table I2 by a heel gage 46,which may be adjusted forwardly and rearwardly to accommodate differentsizes of soles by mechanism operated through a hand Whee148. This samemechanism also serves to select the proper size indenting die and moveit into operating position.

The sole is gaged laterally on the work table I2 by a, pair of yieldingside gages |00 which engage the opposite edges of the sole. These sidegages are carried by blocks which, in turn, are mounted on parallel rackbars |08 and I| 0 geared to a common pinion to coordinate the movementsof the gages about a common center.

With the exception of the marking tool I4, the machine as thus fardescribed, lalthough differing somewhat in design, is in many respectssimilar to that disclosed in the above-mentioned Letters Patent No.1,113,544.

The marking tool I4 is secured to a depending lug |50 on the head I6 bya pair of screws |52 extending through the lug [and threaded into theshank of the marking tool. The lower end of the marking tool, which inthe illustrated machine is shown as rectangular, may be shaped toimpress any desired mark upon the work.

Ink is supplied to the at under surface ofthe marking tool |4 by a feltpad 50 which is kept saturated by applications of ink from time to timeby the operator. The pad 50 (Fig. 4) is carried by a bent lever 52having a forked end 53 which embraces a rod 54 and which is pivotallymounted upon the rod 54 by a fulcrum pin 56. As indicated in Fig. 4 by adotted line, the solid portion of the lever 52 ends and the fork beginsjust slightly above the upper surface of the rod 54. The rod 54, whichmay be conveniently cylindrical, is, slabbed o on opposite sides to pro-22 and the axis of the trunnion pins I8 and 20, C

and it is slidably mounted for longitudinal movement in a guidewayformed in the housing I0. Rigidly mounted upon the rod 54 by e, setscrew60 is a bracket 62 having a cylindrical recess in which is housed aplunger 64. A spring 66, also housed in said recess, urges the plunger64- toward the left, as seen in Fig. 4, causing the left end of theplunger to bear against an abutment 68 formed on the lever 52. Thetendency of the spring-pressed plunger 64 is to urge the ink pad 50downwardly or away from the marking tool I4. Threaded horizontallythrough the upright portion of the lever 52 is a screw 'I0 the left-handedge of which is adapted to bear against an abutment surface I2 formedon the housing I0.

The rod 54 is operated, that is, slid longitudinally in its guideway, bya lever 'I4 (Fig. 3) con nected through a link 'I6 to the left-hand endof the rod. The lever 'I4 is fulcrumed upon a vertical pin 'I8 carriedby .a bracket S0 mounted on the left wall of the housing I0. A rearwardextension of the lever 'I4 carries a cam roll 82 which rides upon a camtrack 84 formed upon a barrel cam 86. The cam 86 is carried upon theleft-hand end of the shaft V22.. and, rotates with the shaft. Mounted inthe lever 'I4 is a cylindrical casing 88 in which is housed a plunger 90urged by a spring 92 toward the left vertical wall of the housing I0.The effect of the springpressed plunger 90 is to tend to swing the lever'I4 in a clockwise direction, as viewed in Fig. 3, that is, to maintainthe cam roll 82 upon its track and to maintain the rod 54 in its normalposition toward the left. The spring 92 is strong enough to overcome theopposing tendency of the spring 66 to move the rod 54 to the right. Themovement of the rod toward the left is limited positively by theengagement of the screw 'I0 with its abutment 12 and by the engagementof the felt pad 50 with the marking tool I 4. When the rod 54 is in thisposition, the shaft 22 is stationary and the depression of the cam track84 is in register with the cam roll 82. The spring plunger 90 wouldswing the lever i4 until the cam roll rested upon the cam track but forthe fact that the rod 54 is positively held against further movementtoward the left.

In order to prevent turning of the rod 54 in its guideway, the bracket62 is provided with a pair of spaced depending arms 94 which embrace arod 96 mounted in the housing I0. The inner surfaces of the arms 94 bearagainst the slabbed-oif sides S1 of the rod 96.

In order to protect the operator from possible injury to his fingerswhile making adjustments, the machine is provided with a guard 98carried by a pair of arms |00 which are pivotally mounted upon thetrunnion pins I3 and 20 and which bear frictionally against the bosseswhich support the trunnion pins to hold the guard in up or downposition. The right-hand arm |00 has an eX- tension |02 in the form of ahook which, when the guard is up or in operative position, engages a pin|04 on the clutch trip .arm 35 to prevent tripping of the clutch.

To operate the machine, the guard 98 is lowered to its working position.The operator then inserts a sole between the gages |06 as far back aspermitted by the heel gage 46. He then treadles the machine, causing theshaft 22 to rotate, whereupon the head I6 descends and the incisingknives 38 and 40 make the incisions |20 and |22', as shown on the sole S(Fig. 5). The rotation of the shaft 22 operates also t0 bring the highportion of the cam track 84 against the cam roll 82, swinging the lever'I4 in a counterclockwise direction against the force of the spring 92and thereby moving the rod 54 toward the right. As the screw 'I0 tendsto back away from its abutment surface 12, it is maintained inengagement with the abutment surface by the spring-pressed plunger 64,which thus swings the lever 52 about its fulcrum 56 and lowers the inkpad 50 out of contact with the marking tool I4. Such downward movementof the ink pad is limited by the solid portion of the lever 52, justabove the rod 54, striking against the upper surface of the rod 54.Continued movement of the rod 54 toward the right moves the pad 50laterally out of the path of the marking tool, whereupon the downwardmovement of the head I6 will bring the marking tool into operativeengagement with the upper surface of the sole and print the mark |24upon the surface of the sole. Such -downward movement of the head will,at the same time, cause the other tools carried by the head to performtheir functions.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a Amachine for operating upon soles, a marker, means for` movingsaid marker in a downward path into engagement with a work piece, an inkpad, relatively strong resilient means for holding said pad inink-applying engagement with the marker, relatively weak resilient meansfor urging said pad downwardly away from the marker, and mechanismdriven by said moving means for positively overcoming said strongresilient means to enable the weaker resilient means to move the padaway from. the marker, said mechanism being constructed and arrangedalso to move the pad out of the rpath of the marker.

2. In a machine for operating on soles, a marker having a lower face forengaging a work piece, means for moving said marker downwardly to bringsaid lower face into engagement with the work piece, an ink pad, an armon which said ink pad is mounted, a slide, a guide in which said slideis movable horizontally, said arm being pivotally mounted on said slidefor heightwise movement of the pad, yieldable means for urging the slidein one direction, an abutment, a member on the arm engageable with theabutment to raise the arm and thereby bring the pad up into inkingengagement With the lower surface of the marker on movement 0f the armin said direction, means for moving said slide in the oprpositedirection to get the pad out of the path of movement of the marker, anda relatively weak spring acting on the arm to urge the pad downwardly,said spring becoming effective to lower the pad away from the lowersurface of the marker upon movement of the abutment-engaging member onthe arm away from the abutment.

3. In a machine for operating upon soies and having a sole support, atool-carrying head movable toward and from said sole support, a drivenshaft, and connections between the shaft and the head for moving thehead, a ymarking device comprising a marking tool on the head, an. inkpad, a rod parallel to the shaft, a. holder for said ink pad pivotallymounted upon the rod for heightwise movement, a guideway in which therod is movable longitudinally, an abutment, a member on said Iholderengageable with said abutment to swing the holder up and bring the padinto ink-applying engagement with the marking tool when the rod is movedin one direction, yieldable means urging the holder down and eiective tolower the pad away from the marking tool when the rod is moved in theopposite direction, and means operated by said shaft for moving the rodin one direction to lower the pad and also move the pad out of the pathof the marking tool when the head descends, and for moving the rod inthe opposite direction to move the pad under the marking tool andraising the pad into ink-applying engagement with the marking tool whenthe head rises.

CHARLES E. HOOD.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,235,565 Hammer et al. Aug, 7,1917 1,574,294 Kohnle Feb. 23, 1926 1,940,691 Neil? et al. Dec. 26, 19331,959,583 Hudson May 22, 1934 1,990,592 Freeman Feb. 12, 1935 1,113,544Cook Oct. 13, 1914

